EP1124042A1 - Steuerungssystem für die Regenerierung eines Partikelfilters für den Auspuff eines Dieselmotors - Google Patents

Steuerungssystem für die Regenerierung eines Partikelfilters für den Auspuff eines Dieselmotors Download PDF

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Publication number
EP1124042A1
EP1124042A1 EP01400224A EP01400224A EP1124042A1 EP 1124042 A1 EP1124042 A1 EP 1124042A1 EP 01400224 A EP01400224 A EP 01400224A EP 01400224 A EP01400224 A EP 01400224A EP 1124042 A1 EP1124042 A1 EP 1124042A1
Authority
EP
European Patent Office
Prior art keywords
state
engine
filter
regeneration
particulate filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01400224A
Other languages
English (en)
French (fr)
Other versions
EP1124042B1 (de
Inventor
François Aioun
Solenne Bourguin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1124042A1 publication Critical patent/EP1124042A1/de
Application granted granted Critical
Publication of EP1124042B1 publication Critical patent/EP1124042B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/029—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a particulate filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402—Multiple injections
    • F02D41/405—Multiple injections with post injections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1411—Introducing closed-loop corrections characterised by the control or regulation method using a finite or infinite state machine, automaton or state graph for controlling or modelling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0812—Particle filter loading
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the present invention relates to a regeneration aid system a particulate filter integrated into a diesel engine exhaust line of motor vehicle.
  • the object of the invention is therefore to solve them.
  • FIG. 1 shows a vehicle diesel engine automobile which is designated by the general reference 1.
  • This diesel engine is associated with air intake means thereof, which are designated by the general reference 2.
  • this engine is associated with an exhaust line which is designated by the general reference 3.
  • Means for recycling exhaust gas from the input engine are also provided and are designated by the general reference 4.
  • the exhaust line can also be combined with a turbocharger designated by the general reference 5 and more particularly to the portion turbine thereof, conventionally.
  • the exhaust line includes a designated oxidation catalyst by the general reference 6, placed upstream of a designated particulate filter by the general reference 7, in the exhaust line.
  • the engine is also associated with a common power system in fuel from the cylinders thereof.
  • This system is designated by the reference general 8 in this figure and comprises for example command injectors electric associated with these cylinders.
  • the motor is a motor with four cylinders and therefore has four electrically controlled injectors, respectively 9, 10, 11 and 12.
  • injectors are associated with a supply ramp common fuel designated by the general reference 13 and connected to fuel supply means designated by general reference 14, comprising for example a high pressure pump.
  • These supply means are connected to a designated fuel tank by the general reference 15 and to means for adding to this fuel a additive intended to be deposited on the particle filter to lower the temperature combustion of particles trapped in it.
  • this additive can for example be contained in a tank auxiliary designated by the general reference 16 associated with the fuel tank 15, to allow the injection of a certain amount of this additive into the fuel.
  • this engine and the various organs which have just been described are also associated with designated operational control means by the general reference 17 in this figure, comprising for example a computer 18 associated with information storage means 19, and connected as input to different means of acquiring information relating to different operating parameters of this engine and these components, this computer then being adapted to control the operation of the intake means, recycling means, turbocharger and / or fuel system to control the operation of the engine and in particular the torque generated by this as a function of the driving conditions of the vehicle, in a conventional manner.
  • a computer 18 associated with information storage means 19, and connected as input to different means of acquiring information relating to different operating parameters of this engine and these components, this computer then being adapted to control the operation of the intake means, recycling means, turbocharger and / or fuel system to control the operation of the engine and in particular the torque generated by this as a function of the driving conditions of the vehicle, in a conventional manner.
  • this computer is connected to a differential pressure 20 at the terminals of the catalyst and the particulate filter, respectively 6 and 7, and to temperature sensors 21, 22 and 23, respectively upstream of the catalyst, between this catalyst and the particulate filter and in downstream of this particulate filter in the exhaust line.
  • the computer also receives oxygen content information gases entering the engine from a designated proportional Lambda ⁇ probe by the general reference 24 in this figure, arranged at the input of the engine.
  • the computer can also receive information on the content of engine exhaust oxygen from another Lambda ⁇ probe proportional 25 integrated in the exhaust line thereof.
  • this computer is suitable for controlling the means air intake, exhaust gas recycling means, the turbocharger, the means of adding the additive to the fuel, the supply means fuel from the common rail and the different injectors associated with the cylinders of the motor.
  • this computer is suitable for triggering a phase regeneration of the particulate filter by combustion of particles trapped in this by initiating a phase of multiple fuel injections into the engine cylinders during their expansion phase.
  • Particles emitted by the engine during operation are indeed trapped in the particle filter. It should then be regenerated regularly by combustion of these particles.
  • the means 4 for recycling gases engine exhaust at the inlet of it include a solenoid valve proportional which is controlled by the control means 17 according to the information delivered by the proportional Lambda ⁇ probe 24, and possibly those delivered by the Lambda 25 probe, to regulate the recycling of gases exhaust at the engine inlet depending on the oxygen content of the gas entering the engine during the regeneration phase of the particulate filter.
  • the computer 18 can also be adapted to control the operation of the turbocharger 5 and more particularly its set pressure supercharging in order to regulate the oxygen content of the gases entering the engine and / or the operation of means 26 for controlling the temperature of the gas entering the engine comprising for example any suitable exchanger of conventional way, arranged at the engine inlet.
  • this calculator and more generally, the means of control 17 are presented as illustrated in FIG. 2, in the form of a supervisor with state machines synchronized during state transitions, of the type classic.
  • this supervisor comprises at least two automata synchronized, one of which is designated by the general reference 27 and the other by the general reference 28.
  • the state machine 27 is associated with a function for determining the state of the particle filter, while the state machine 28 is associated with a function management and control of the initiation and progress of the phase regeneration of the particulate filter, that is to say of piloting the regeneration aid.
  • This structure was developed to overcome the difficulties associated with the management of a large number of states, in particular the filter and engine control, as well as a large number of possible transitions between these different states or these different strategies.
  • This structure also makes it possible to obtain a certain coherence facilitating the understanding of the operating principles of this supervisor and its evolution to simplify its development.
  • such a structure can be validated automatically by implementation of unit tests, based on experimental data, etc., which saves time in developing and respecting Functional Specifications.
  • This structure is easily adaptable, particularly if one wishes to example introduce a new filter state or a new control strategy of the engine and its associated organs, provides a coherent approach in the management of different tasks.
  • these different states are ordered by levels increasing clogging of it.
  • Another advantage of this state machine approach is that it allows validation by simulation.
  • the automaton 27 for determining the state of the filter at particles has six different states.
  • pierced particle filter state 30 a state 31 of regenerated particulate filter, state 32 of partially loaded particulate filter, a state 33 of charged particle filter, a state 34 of overloaded particle filter, and a blocked particle filter condition 35.
  • the state machine 28 for triggering and unwinding control regeneration aid for example, has three states.
  • These states are a first state 36 corresponding to an operation without aid to the regeneration of the particulate filter, a second state 37 of aid to the first level regeneration and a state 38 of second level regeneration aid level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP01400224A 2000-02-09 2001-01-29 Steuerungssystem für die Regenerierung eines Partikelfilters für den Auspuff eines Dieselmotors Expired - Lifetime EP1124042B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0001607A FR2804718B1 (fr) 2000-02-09 2000-02-09 Systeme d'aide a la regeneration d'un filtre a particules integre dans une ligne d'echappement d'un moteur diessel de vehicule automobile
FR0001607 2000-02-09

Publications (2)

Publication Number Publication Date
EP1124042A1 true EP1124042A1 (de) 2001-08-16
EP1124042B1 EP1124042B1 (de) 2005-03-23

Family

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EP01400224A Expired - Lifetime EP1124042B1 (de) 2000-02-09 2001-01-29 Steuerungssystem für die Regenerierung eines Partikelfilters für den Auspuff eines Dieselmotors

Country Status (5)

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EP (1) EP1124042B1 (de)
AT (1) ATE291687T1 (de)
DE (1) DE60109508T2 (de)
ES (1) ES2236148T3 (de)
FR (1) FR2804718B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4170935B2 (ja) * 2004-03-11 2008-10-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
EP4183372A1 (de) 2016-01-29 2023-05-24 Neovasc Tiara Inc. Klappenprothese zur vermeidung von abflussverstopfung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196421A2 (de) * 1985-04-04 1986-10-08 Zeuna-Stärker Gmbh & Co Kg Verfahren zum Regenerieren von Russfiltern bei Diesel-Brennkraftmaschinen
US5671141A (en) * 1993-04-05 1997-09-23 Ford Global Technologies, Inc. Computer program architecture for onboard vehicle diagnostic system
FR2760044A1 (fr) * 1997-02-27 1998-08-28 Bosch Gmbh Robert Procede et dispositif pour surveiller un systeme de commande d'un moteur a combustion interne
FR2774421A1 (fr) * 1998-02-02 1999-08-06 Peugeot Systeme de gestion du fonctionnement d'un filtre a particules associe a un moteur diesel notamment de vehicule automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196421A2 (de) * 1985-04-04 1986-10-08 Zeuna-Stärker Gmbh & Co Kg Verfahren zum Regenerieren von Russfiltern bei Diesel-Brennkraftmaschinen
US5671141A (en) * 1993-04-05 1997-09-23 Ford Global Technologies, Inc. Computer program architecture for onboard vehicle diagnostic system
FR2760044A1 (fr) * 1997-02-27 1998-08-28 Bosch Gmbh Robert Procede et dispositif pour surveiller un systeme de commande d'un moteur a combustion interne
FR2774421A1 (fr) * 1998-02-02 1999-08-06 Peugeot Systeme de gestion du fonctionnement d'un filtre a particules associe a un moteur diesel notamment de vehicule automobile

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AZIZ A ET AL: "SUPERVISORY CONTROL OF FINITE STATE MACHINES", COMPUTER AIDED VERIFICATION. INTERNATIONAL CONFERENCE,XX,XX, 3 July 1995 (1995-07-03), pages 279 - 292, XP000604449 *
LANGKABEL G I: "LA PLUS GRANDE INVENTION DEPUIS LE MOTEUR DIESEL", REVUE AUTOMOBILE,CH,HALLWAG S.A. BERNE, vol. 94, no. 19, 6 May 1999 (1999-05-06), pages 21, XP000825692, ISSN: 0035-0761 *

Also Published As

Publication number Publication date
DE60109508T2 (de) 2006-03-16
FR2804718B1 (fr) 2002-05-03
ATE291687T1 (de) 2005-04-15
DE60109508D1 (de) 2005-04-28
EP1124042B1 (de) 2005-03-23
FR2804718A1 (fr) 2001-08-10
ES2236148T3 (es) 2005-07-16

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